How the Summit Racing Cam Timing Calculator Works

The Summit Racing Cam Timing Calculator converts duration, lobe separation, and advance into the four individual timing events that will ultimately dictate engine performance.
You can also tweak any of the four events in the calculator to learn what the resulting duration, lobe separation, and advance would be under the new conditions.
No matter what engine or application you’re building it for, you can quickly compare specs and how they differ under different running conditions.

[rightsidelanechoice]

Nice someone finally came up with a formula chart.

[longtattat]

Please ask if it is ATDC after the top death center. BBDC is the top center bottom and ABDC is behind the center bottom and BTDC is ahead of the top dead center

[reddbulll]

What cam can I use on my 95 tbi 5.7 chevy without having to tune my ecm ?or change lifters and springs

[longtattat]

Please let me know if it is correct. Thank you

[rightsidelanechoice]

Without knowing when your lift tops out with the amount of port flow gain your still kinda pissing in the whims though.

[kevinwest]

If the Advance or retard is ground into the cam, then you dont need a timing chain with adjustment to advance or retard? I'm wanting to run a sloppy stage 2, I bought an adjustable timing chain, should I send it back for a cheaper one, or can I make the sloppy stage 2 benefit from it?

[jamest.]

Has anyone ran a 7.0 cam in a 4.8? Any idea of how it would run? And what kind of idle?